/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2017 abel533@gmail.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package tk.mybatis.mapper.provider.base;

import org.apache.ibatis.mapping.MappedStatement;
import tk.mybatis.mapper.mapperhelper.MapperHelper;
import tk.mybatis.mapper.mapperhelper.MapperTemplate;
import tk.mybatis.mapper.mapperhelper.SqlHelper;

/**
 * BaseSelectProvider实现类，基础方法实现类
 *
 * @author liuzh
 */
public class BaseSelectProvider extends MapperTemplate {

  public BaseSelectProvider(Class<?> mapperClass, MapperHelper mapperHelper) {
    super(mapperClass, mapperHelper);
  }

  /**
   * 查询
   *
   * @param ms
   * @return
   */
  public String selectOne(MappedStatement ms) {
    Class<?> entityClass = getEntityClass(ms);
    //修改返回值类型为实体类型
    setResultType(ms, entityClass);
    StringBuilder sql = new StringBuilder();
    sql.append(SqlHelper.selectAllColumns(entityClass));
    sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));
    sql.append(SqlHelper.whereAllIfColumns(entityClass, isNotEmpty()));
    return sql.toString();
  }

  /**
   * 查询
   *
   * @param ms
   * @return
   */
  public String select(MappedStatement ms) {
    Class<?> entityClass = getEntityClass(ms);
    //修改返回值类型为实体类型
    setResultType(ms, entityClass);
    StringBuilder sql = new StringBuilder();
    sql.append(SqlHelper.selectAllColumns(entityClass));
    sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));
    sql.append(SqlHelper.whereAllIfColumns(entityClass, isNotEmpty()));
    sql.append(SqlHelper.orderByDefault(entityClass));
    return sql.toString();
  }

  /**
   * 查询
   *
   * @param ms
   * @return
   */
  public String selectByRowBounds(MappedStatement ms) {
    return select(ms);
  }

  /**
   * 根据主键进行查询
   *
   * @param ms
   */
  public String selectByPrimaryKey(MappedStatement ms) {
    final Class<?> entityClass = getEntityClass(ms);
    //将返回值修改为实体类型
    setResultType(ms, entityClass);
    StringBuilder sql = new StringBuilder();
    sql.append(SqlHelper.selectAllColumns(entityClass));
    sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));
    sql.append(SqlHelper.wherePKColumns(entityClass));
    return sql.toString();
  }

  /**
   * 查询总数
   *
   * @param ms
   * @return
   */
  public String selectCount(MappedStatement ms) {
    Class<?> entityClass = getEntityClass(ms);
    StringBuilder sql = new StringBuilder();
    sql.append(SqlHelper.selectCount(entityClass));
    sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));
    sql.append(SqlHelper.whereAllIfColumns(entityClass, isNotEmpty()));
    return sql.toString();
  }

  /**
   * 根据主键查询总数
   *
   * @param ms
   * @return
   */
  public String existsWithPrimaryKey(MappedStatement ms) {
    Class<?> entityClass = getEntityClass(ms);
    StringBuilder sql = new StringBuilder();
    sql.append(SqlHelper.selectCountExists(entityClass));
    sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));
    sql.append(SqlHelper.wherePKColumns(entityClass));
    return sql.toString();
  }

  /**
   * 查询全部结果
   *
   * @param ms
   * @return
   */
  public String selectAll(MappedStatement ms) {
    final Class<?> entityClass = getEntityClass(ms);
    //修改返回值类型为实体类型
    setResultType(ms, entityClass);
    StringBuilder sql = new StringBuilder();
    sql.append(SqlHelper.selectAllColumns(entityClass));
    sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));

    // 逻辑删除的未删除查询条件
    sql.append("<where>");
    sql.append(SqlHelper.whereLogicDelete(entityClass, false));
    sql.append("</where>");

    sql.append(SqlHelper.orderByDefault(entityClass));
    return sql.toString();
  }
}
